The Deflector,dirt and Liquid, cataloged under National Stock Number 4320-01-144-9655, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-144-9655 |
| Primary Part Number | SSN678-501-4361591,PC.3 |
| Item Name | Deflector,dirt and Liquid |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SSN678-501-4361591,PC.3 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| SSN678-501-4361591 | D/9 Drawing number reference only U.S. Government activity |
| 77643-65X24 | D/9 Drawing number reference only U.S. Government activity |
| SSN678-501-4361591 PIECE 3 | 5/2 Secondary reference U.S. Government activity |
| 77643-65X24 PIECE 3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-01-144-9655 is a Deflector,dirt and Liquid, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-144-9655 has 1 manufacturer part number on file: SSN678-501-4361591,PC.3 (Derbyshire Machine & Tool Co).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-144-9671, 4710-01-145-0304, 3040-01-145-0381. Verify interchangeability with system specifications before substitution.
Key specifications for SSN678-501-4361591,PC.3: Material: STEEL CORROSION RESISTING. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.